Alloy Steel Gr B7 Screws are tough, high-strength fasteners crafted for critical roles in industrial, mechanical, and structural settings. Made from top-notch alloy steel that includes chromium and molybdenum, these screws deliver outstanding tensile strength, hardness, and resistance to wear, fatigue, and corrosion. With their precise threading and finishing, Gr B7 Screws guarantee secure fastening, reliable load distribution, and long-lasting performance. They’re a go-to choice in industries like oil and gas, petrochemical, power generation, and heavy engineering, providing trustworthy fastening solutions even in high-pressure and high-temperature situations.
Alloy Steel Gr B7 Screws are chromium-molybdenum alloy steel fasteners having typical composition such as 0.38-0.48% carbon, 0.75-1.0% manganese, 0.15-0.35% silicon, 0.75-1.2% chromium, and 0.15-0.25% molybdenum. The screws are heat treated with quenching and tempering to give improved tensile strength, hardness and long-lasting durability. Acclaimed for their superior high-temperature and pressure resistance they are best suited for severe applications where there is a need for strong, secure fastening. Their accurate chemical composition guarantees dependability in severe structural and mechanical assemblies.
| Standard | : | ASTM A194 |
| Dimension | : | DIN, ASTM, BS and all International Standards |
| Size | : | M02 to M33 |
| Materials / Grades | : | Alloy Steel B7 |
| Length | : | UPTO 5 METERS |
| Type | : | Hex Screw, , Coach Screw etc. |
| Grade | C | Mn | P | S | SI | Cr | Mo |
| B7 | 0.37-0.49 | 0.65-1.10 | 0.035 Max | 0.04 Max | 0.15-0.35 | 0.75-1.20 | 0.15-0.25 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
These screws are primarily made of iron, combined with carbon, chromium, molybdenum, and a few trace elements to boost their mechanical properties. This blend ensures they have high tensile and yield strength, toughness, and the ability to handle heavy loads without bending. Heat treatment enhances their hardness, wear resistance, and overall mechanical performance, making them perfect for tough industrial and high-stress environments.
You’ll often find Alloy Steel Gr B7 Screws in flanged joints, pipelines, pressure vessels, heavy machinery, and structural assemblies. They shine in high-pressure, high-temperature, and chemically challenging applications where secure, durable, and maintenance-free fastening is a must. Their strength, resistance to corrosion, and long-term reliability make Alloy Steel Gr B7 Screws a top choice for industrial and engineering fastening needs.
Chetak Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Hyderabad, India.
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